Testing chromosomal phylogenies and inversion breakpoint reuse in Drosophila
نویسندگان
چکیده
Josefa González, Ferran Casals and Alfredo Ruiz Departament de Genètica i de Microbiologia. Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona) Spain. Present address: Department of Biological Sciences. Stanford University. Stanford, CA 94305, USA. Present address: Unitat de Biología Evolutiva, Facultat de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, 08003 Barcelona, Spain.
منابع مشابه
Characterization of the breakpoints of a polymorphic inversion complex detects strict and broad breakpoint reuse at the molecular level.
Inversions are an integral part of structural variation within species, and they play a leading role in genome reorganization across species. Work at both the cytological and genome sequence levels has revealed heterogeneity in the distribution of inversion breakpoints, with some regions being recurrently used. Breakpoint reuse at the molecular level has mostly been assessed for fixed inversion...
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Chromosomal polymorphism is widespread in the Drosophila genus, with extensive evidence supporting its adaptive character in diverse species. Moreover, inversions are the major contributors to the genus chromosomal evolution. The molecular characterization of a reduced number of polymorphic inversion breakpoints in Drosophila melanogaster and Drosophila subobscura supports that their inversions...
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The availability of 12 complete genomes of various species of genus Drosophila provides a unique opportunity to analyze genome-scale chromosomal rearrangements among a group of closely related species. This article reports on the comparison of gene order between these 12 species and on the fixed rearrangement events that disrupt gene order. Three major themes are addressed: the conservation of ...
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Adaptive changes in nature occur by a variety of mechanisms, and Drosophila chromosomal inversions was one of the first studied examples. However, the precise genetic causes of the adaptive value of inversions remain uncertain. Here we investigate the impact of the widespread inversion 2j of Drosophila buzzatii on the expression of the CG13617 gene, whose coding region is located only 12 bp awa...
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BACKGROUND Transposable elements (TEs) are responsible for the generation of chromosomal inversions in several groups of organisms. However, in Drosophila and other Dipterans, where inversions are abundant both as intraspecific polymorphisms and interspecific fixed differences, the evidence for a role of TEs is scarce. Previous work revealed that the transposon Galileo was involved in the gener...
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تاریخ انتشار 2006